| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Santos, Elton J. G.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Magnetic Imaging and Domain Nucleation in CrSBr Down to the 2D Limitcitations
- 2023Magnetic properties of intercalated quasi-2D Fe3-xGeTe2 van der Waals magnetcitations
- 2019Ultrahigh-current-density niobium disulfide catalysts for hydrogen evolutioncitations
- 2019Approaching the Intrinsic Limit in Transition Metal Diselenides via Point Defect Controlcitations
- 2018Phase transition and electronic structure evolution of MoTe2 induced by W substitutioncitations
- 2018Mechanism of Gold-Assisted Exfoliation of Centimeter-Sized Transition-Metal Dichalcogenide Monolayerscitations
- 2018Hundredfold Enhancement of Light Emission via Defect Control in Monolayer Transition-Metal Dichalcogenides
- 2017Aggregation-induced emission in lamellar solids of colloidal perovskite quantum wellscitations
- 2017Molecular Arrangement and Charge Transfer in C60/Graphene Heterostructurescitations
- 2017Molecular Arrangement and Charge Transfer in C60/Graphene Heterostructurescitations
- 2015Structural and Electrical Investigation of C 60 –Graphene Vertical Heterostructurescitations
- 2013First-Principles Study of the Electronic and Magnetic Properties of Defects in Carbon Nanostructurescitations
- 2013Magnetoelectric effect in functionalized few-layer graphenecitations
Places of action
| Organizations | Location | People |
|---|
article
Aggregation-induced emission in lamellar solids of colloidal perovskite quantum wells
Abstract
The outstanding excitonic properties, including photoluminescence quantum yield (ηPL), of individual, quantum-confined semiconductor nanoparticles are often significantly quenched upon aggregation, representing the main obstacle toward scalable photonic devices. We report aggregation-induced emission phenomena in lamellar solids containing layer-controlled colloidal quantum wells (QWs) of hybrid organic-inorganic lead bromide perovskites, resulting in anomalously high solid-state ηPL of up to 94%. Upon forming the QW solids, we observe an inverse correlation between exciton lifetime and ηPL, distinct from that in typical quantum dot solid systems. Our multiscale theoretical analysis reveals that, in a lamellar solid, the collective motion of the surface organic cations is more restricted to orient along the [100] direction, thereby inducing a more direct bandgap that facilitates radiative recombination. Using the QW solids, we demonstrate ultrapure green emission by completely downconverting a blue gallium nitride light-emitting diode at room temperature, with a luminous efficacy higher than 90 lumen W−1 at 5000 cd m−2, which has never been reached in any nanomaterial assemblies by far.